York YLAA0285SE User manual

YLAA0195 - YLAA0515
AIR-COOLED SCROLL CHILLERS
WITH MICROCHANNEL CONDENSER COILS
STYLE A (50 HZ)
57 - 142 TON
Products are produced at a
f a c i l i t y w h o s e q u a l i t y -
management systems are
ISO9001 certified.
R-410A
Issue Date:
October 5, 2020
035-21911-001
AIR-COOLED SCROLL CHILLER
INSTALLATION, OPERATION, MAINTENANCE Supersedes 150.72-NM3 (811) Form 150.72-NM3 (1020)

JOHNSON CONTROLS
2
FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
This equipment is a relatively complicated apparatus.
During installation, operation, maintenance or service,
individuals may be exposed to certain components or
conditions including, but not limited to: refrigerants,
oils, materials under pressure, rotating components,
and both high and low voltage. Each of these items
has the potential, if misused or handled improperly, to
cause bodily injury or death. It is the obligation and
responsibility of operating/service personnel to identify
and recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure to
comply with any of these requirements could result in
serious damage to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
operating/service personnel. It is expected that this
individual possesses independent training that will
enable them to perform their assigned tasks properly
and safely. It is essential that, prior to performing any
task on this equipment, this individual shall have read
and understood this document and any referenced
materials. This individual shall also be familiar with and
comply with all applicable governmental standards and
regulations pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to areas of potential hazard:
CAUTION identies a hazard which
could lead to damage to the machine,
damage to other equipment and/or
environmental pollution. Usually an
instruction will be given, together with
a brief explanation.
NOTE is used to highlight additional
information which may be helpful to
you.
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or serious
injury.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or se-
rious injury.
External wiring, unless specied as an optional connection in the manufacturer’s product
line, is NOT to be connected inside the micropanel cabinet. Devices such as relays, switches,
transducers and controls may NOT be installed inside the panel. NO external wiring is al-
lowed to be run through the micropanel. All wiring must be in accordance with Johnson
Controls published specications and must be performed ONLY by qualied Johnson Controls
personnel. Johnson Controls will not be responsible for damages/problems resulting from
improper connections to the controls or application of improper control signals. Failure to
follow this will void the manufacturer’s warranty and cause serious damage to property or
injury to persons.

3
JOHNSON CONTROLS
FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
In complying with Johnson Controls policy for
continuous product improvement, the information
contained in this document is subject to change
without notice. While Johnson Controls makes no
commitment to update or provide current information
automatically to the manual owner, that information,
if applicable, can be obtained by contacting the near-
est Johnson Controls Service oce or accessing the
Johnson Controls Knowledge Exchange website at
https://docs.johnsoncontrols.com/chillers/
It is the responsibility of operating/service personnel
to verify the applicability of these documents to the
equipment in question. If there is any question in
the mind of operating/service personnel as to the
applicability of these documents, then prior to working
on the equipment, they should verify with the owner
whether the equipment has been modied and if current
literature is available.
CHANGEABILITY OF THIS DOCUMENT
REVISION NOTES
Revisions made to this document are indicated in the following table. These revisions are to technical information,
and any other changes in spelling, grammar, or formatting are not included.
AFFECTED PAGES DESCRIPTION
3 Conditioned Based Maintenance program information added
CONDITIONED BASED MAINTENANCE
Traditional chiller maintenance is based upon assumed
and generalized conditions. In lieu of the traditional
maintenance program, a Johnson Controls YORK
Conditioned Based Maintenance (CBM) program can
be substituted. This CBM service plan is built around
the specific needs for the chiller, operating conditions,
and annualized impact realized by the chiller. Your lo-
cal Johnson Controls Branch can propose a customized
Planned Service Agreement that leverages real time
and historical data, delivering performance reporting,
corrective actions required and data enabled guidance
for optimal operation and lifecycle assurance. The pro-
gram will include fault detection diagnostics, operation
code statistics, performance based algorithms and ad-
vance rules based rationale delivered by the Johnson
Controls Connected Equipment Portal.

JOHNSON CONTROLS
4
FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
TABLE OF CONTENTS
SECTION 1 – GENERAL CHILLER INFORMATION & SAFETY.................................................................13
INTRODUCTION........................................................................................................................................13
WARRANTY ...............................................................................................................................................13
SAFETY AND QUALITY............................................................................................................................13
Standards for Safety and Quality.......................................................................................................13
Responsibility for Safety ....................................................................................................................14
ABOUT THIS MANUAL.............................................................................................................................14
MISUSE OF EQUIPMENT.........................................................................................................................14
Suitability for Application ...................................................................................................................14
Structural Support...............................................................................................................................14
Mechanical Strength ..........................................................................................................................14
General Access....................................................................................................................................14
Pressure Systems ...............................................................................................................................15
Electrical...............................................................................................................................................15
Rotating Parts ......................................................................................................................................15
Sharp Edges.........................................................................................................................................15
Refrigerants and Oils ..........................................................................................................................15
High Temperature and Pressure Cleaning ........................................................................................15
Emergency Shutdown.........................................................................................................................15
SECTION 2 – PRODUCT DESCRIPTION......................................................................................................17
INTRODUCTION........................................................................................................................................17
GENERAL SYSTEM DESCRIPTION .......................................................................................................17
Compressors .......................................................................................................................................17
Cooler (Evaporator).............................................................................................................................17
Condenser............................................................................................................................................18
HIGH AMBIENT KIT ..................................................................................................................................19
BUILDING AUTOMATION SYSTEM INTERFACE .................................................................................19
POWER PANEL .........................................................................................................................................19
ACCESSORIES AND OPTIONS ..............................................................................................................20
Power Options .....................................................................................................................................20
Control Options ...................................................................................................................................20
Compressor, Piping, Evaporator Options .........................................................................................20
Condenser and Cabinet Options........................................................................................................21
UNIT COMPONENTS ...............................................................................................................................23
CONTROL / POWER PANEL COMPONENTS .......................................................................................25
PRODUCT IDENTIFICATION NUMBER (PIN)........................................................................................27
BASIC UNIT NOMENCLATURE ..............................................................................................................27
PROCESS AND INSTRUMENTATION DIAGRAM .................................................................................34
SECTION 3 – HANDLING AND STORAGE...................................................................................................35
DELIVERY AND STORAGE......................................................................................................................35
INSPECTION..............................................................................................................................................35
MOVING THE CHILLER............................................................................................................................35
Lifting Weights.....................................................................................................................................35

5
JOHNSON CONTROLS
FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
TABLE OF CONTENTS (CONT’D)
SECTION 4 – INSTALLATION ........................................................................................................................37
INSTALLATION CHECKLIST...................................................................................................................37
HANDLING .................................................................................................................................................37
INSPECTION..............................................................................................................................................37
LOCATION AND CLEARANCES .............................................................................................................37
Foundation ...........................................................................................................................................38
Ground Level Locations .....................................................................................................................38
Rooftop Locations...............................................................................................................................38
Noise Sensitive Locations ..................................................................................................................38
SPRING ISOLATORS (OPTIONAL).........................................................................................................38
COMPRESSOR MOUNTING ....................................................................................................................38
REMOTE COOLER OPTION ....................................................................................................................38
CHILLED LIQUID PIPING.........................................................................................................................38
PIPEWORK ARRANGEMENT..................................................................................................................39
DUCT WORK CONNECTION ..................................................................................................................40
General Requirements .......................................................................................................................40
WIRING.......................................................................................................................................................40
Evaporator Pump Start Contacts .......................................................................................................40
System Run Contacts .........................................................................................................................40
Alarm Status Contacts ........................................................................................................................41
Remote Start/Stop Contacts...............................................................................................................41
Remote Emergency Cuto󰀨 .................................................................................................................41
Remote Temp Reset Input ..................................................................................................................41
Load Limit Input...................................................................................................................................41
Flow Switch Input ................................................................................................................................41
COMPRESSOR HEATERS.......................................................................................................................41
RELIEF VALVES........................................................................................................................................41
HIGH PRESSURE CUTOUT .....................................................................................................................41
SINGLE-POINT SUPPLY CONNECTION – TERMINAL BLOCK, NON-FUSED DISCONNECT
SWITCH OR CIRCUIT BREAKER ...........................................................................................................42
USER CONTROL WIRING INPUTS.........................................................................................................43
USER CONTROL WIRING OUTPUTS.....................................................................................................44
SECTION 5 – TECHNICAL DATA...................................................................................................................45
OPERATIONAL LIMITATIONS (ENGLISH).............................................................................................45
Temperatures and Flows ....................................................................................................................45
Voltage Limitations..............................................................................................................................45
HEAT EXCHANGER FLOW, GPM ...........................................................................................................46
Ethylene & Propylene Glycol Correction Factors ............................................................................46
PHYSICAL DATA (ENGLISH)...................................................................................................................47
Standard E󰀩ciency YLAA0285 - YLAA0485 .....................................................................................47
High E󰀩ciency YLAA0195 - YLAA0515 .............................................................................................48